252964-65-1Relevant articles and documents
An optical pure itraconazole key intermediate and synthetic method and by the intermediate synthesis of optically pure itraconazole method
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, (2018/09/26)
The invention disclsoes an optically pure itraconazole key intermediate and synthetic method thereof, and a method for synthesizing the optically pure itraconazole from the intermediate. The method of the invention uses 1-(2,4-dichlorobenzene)-2-(1-methylene-1,2,4-triazole)-1-ketone for preparing the optically pure itraconazole key intermediate, and the optically pure itraconazole key intermediate is used for the preparation of optically pure itraconazole. The method uses easily available raw materials, not only reduces the production cost, but also obtains the product with high purity; through the control of the optical purity of the key intermediate compound VII, the optical purity of the target product itraconazole can be effectively controlled; therefore, the invention has with industrial value.
Prepartion method of itraconazole
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, (2017/04/29)
The invention discloses a preparation method of itraconazole. Raceme-glycidol which is cheap and easy to obtain is adopted as raw materials, hydroxyls at the two ends are protected by trityl and benzyl and then esterified by 2,4-dichlorobenzene formyl chloride, then, a silylation Grignard addition reaction and a beta-silicyl alcohol elimination reaction are adopted for reducing carbonyl into carbon-carbon double bonds, iodine is adopted for performing an olefin addition reaction and a stereoselectivity ring-closure reaction, triazole replacement and debenzylation are performed, and tosyl is introduced to obtain a compound 9; the compound and a compound 10 are subjected to a condensastion reaction to obtain itraconazole; the overall synthesis process is small in pollution, easy to process, few in by-product, high in reaction selectivity and purity, environmentally friendly, low in production cost and suitable for industrial production; the defects that in the prior art, the selectivity is poor, multiple by-products are produced, the yield is low, and expensive catalysts and reagents with large environmental pollution are avoided are avoided.
Repurposing the Clinically Efficacious Antifungal Agent Itraconazole as an Anticancer Chemotherapeutic
Pace, Jennifer R.,Deberardinis, Albert M.,Sail, Vibhavari,Tacheva-Grigorova, Silvia K.,Chan, Kelly A.,Tran, Raymond,Raccuia, Daniel S.,Wechsler-Reya, Robert J.,Hadden, M. Kyle
, p. 3635 - 3649 (2016/05/24)
Itraconazole (ITZ) is an FDA-approved member of the triazole class of antifungal agents. Two recent drug repurposing screens identified ITZ as a promising anticancer chemotherapeutic that inhibits both the angiogenesis and hedgehog (Hh) signaling pathways. We have synthesized and evaluated first- and second-generation ITZ analogues for their anti-Hh and antiangiogenic activities to probe more fully the structural requirements for these anticancer properties. Our overall results suggest that the triazole functionality is required for ITZ-mediated inhibition of angiogenesis but that it is not essential for inhibition of Hh signaling. The synthesis and evaluation of stereochemically defined des-triazole ITZ analogues also provides key information as to the optimal configuration around the dioxolane ring of the ITZ scaffold. Finally, the results from our studies suggest that two distinct cellular mechanisms of action govern the anticancer properties of the ITZ scaffold.
Solid Pharmaceutical Preparations Containing Copolymers Based On Polyethers Combined With Poorly Water-Soluble Polymers
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, (2012/03/12)
The invention relates to dosage forms which contain preparations of poorly water-soluble substances in a polymer matrix of polyether copolymers, said polyether copolymers being obtained by the radically initiated polymerization of a mixture from 30 to 80% by weight of N-vinyl lactam, 10 to 50% by weight of vinyl acetate and 10 to 50% by weight of a polyether, and at least one poorly water-soluble polymer, the poorly water-soluble substance being present in the polymer matrix as an amorphous substance.
Rapidly Soluble Solid Pharmaceutical Preparations Containing Amphiphilic Copolymers Based On Polyethers In Combination With Hydrophilic Polymers
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, (2012/08/27)
Dosage forms comprising formulations of sparingly water-soluble active ingredients in a polymer matrix composed of amphiphilic polyether copolymers and of at least one hydrophilic polymer, in which the sparingly water-soluble active ingredient is present in amorphous form in the polymer matrix.
A PROCESS FOR THE PREPARATION OF ITRACONAZOLE
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Page/Page column 5-6, (2011/10/13)
The present invention encompasses a process for the preparation and purification of cis-4-[4-[4-[4-[[2-(2,4-dichlorophenyl)-2-(1H-1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methxoy]phenyl]-1-piperazinyl]phenyl]-2,4-dihydro-2-(1-methylpropyl)-3H-1,2,4-triazol-3-one of formula (I) to obtain a specifically desired four possible sterioisomer.
Stereoselective determination of the epimer mixtures of itraconazole in human blood plasma using HPLC and fluorescence detection
Pyrgaki, Christina,Bannister, Steve J.,Gera, Lajos,Gerber, John G.,Gal, Joseph
experimental part, p. 495 - 503 (2012/01/11)
Itraconazole is an antifungal drug widely used in a variety of fungal infections, which have become a significant public-health problem in recent decades. Itraconazole is a chiral drug consisting of two diastereoisomeric racemates, i.e., four stereoisomers. Data in the literature suggests that stereochemistry may play a significant role in the action and disposition of the drug and therefore stereoselective analytical methods for the determination of the drug in biological fluids are needed for the elucidation of that role. We report a stereoselective HPLC method that incorporates solvent extraction, the use of an internal standard, two chiral stationary phases in series, and fluorescence detection. The procedure is enantioselective and partially diastereoselective and provides the concentrations in blood plasma of the two epimer mixtures 2R,4S,2'R/2R,4S2'S and 2S,4R,2'R/2S,4R,2'S, respectively, each of which is a combination of the two epimers that differ in the configuration at the sec-butyl group. The analytical method has suitable sensitivity, recovery, precision, and accuracy. Analysis of the plasma of a human subject six hours after the oral administration of a single 200-mg dose of itraconazole showed a 3.4-fold difference between the concentrations of the epimer mixtures. The method has certain advantages over the published alternative procedure that uses LC-MS. Copyright
Methods for predicting the response to statins
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, (2011/10/13)
The invention provides methods for optimizing therapeutic efficacy for treating hypercholesterolemia in a subject having a cardiovascular disease (CVD), comprising (a) determining subject characteristics that affect the likelihood of reaching a goal level of low density lipoprotein (LDL); and (b) obtaining success probabilities of a variety of statin treatments for reaching said goal level of LDL using said subject characteristics and a multivariate model; and (c) administrating the optimal statin treatment with the highest success probability of step (b) to said subject thereby optimizing therapeutic efficacy for treating hypercholesterolemia in said subject.
Impact of absolute stereochemistry on the antiangiogenic and antifungal activities of itraconazole
Shi, Wei,Nacev, Benjamin A.,Bhat, Shridhar,Liu, Jun O.
scheme or table, p. 155 - 159 (2010/10/19)
Itraconazole is used clinically as an antifungal agent and has recently been shown to possess antiangiogenic acitivity. Itraconazole has three chiral centers that give rise to eight stereoisomers. The complete role of stereochemistry in the two activities of itraconazole, however, has not been addressed adequately. For the first time, all eight stereoisomers of itraconazole (1a?h) have been synthesized and evaluated for activity against human endothelial cell proliferation and for antifungal activity against five fungal strains. Distinct antiangiogenic and antifungal activity profiles of the trans stereoisomers, especially 1e and 1f, suggest different molecular mechanisms underlying the antiangiogenic and antifungal activities of itraconazole.
ENHANCING SOLUBILITY AND DISSOLUTION RATE OF POORLY SOLUBLE DRUGS
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, (2009/12/27)
The present invention relates generally to use of a polyvinyl alcohol-polyethylene glycol graft copolymer (PVA-PEG graft co-polymer), such as Kollicoat IR, in the formulation of solid dispersions of low aqueous solubility and dissolution rate bioactive compound and, more particularly to a system and method for improving the solubility and dissolution rate of such low aqueous solubility and dissolution rate bioactive compound, in particular the drug of low aqueous solubility, such as a BCS Class II or Class IV drug compounds.